package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.mapper.CategoryMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {
    @Autowired
    private CategoryMapper categoryMapper;

    @Override
    public PageResult page(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(),categoryPageQueryDTO.getPageSize());
        Page<Category> page = categoryMapper.page(categoryPageQueryDTO);
        long total = page.getTotal();
        List<Category> categories = page.getResult();
        return new PageResult(total,categories);
    }

    @Override
    public void add(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        //菜品添加设置类型为1,如果是套餐分类类型设置为2
        if (categoryDTO.getType().equals(1)){
            category.setType(1);
        }else {
            category.setType(2);
        }
        category.setCreateTime(LocalDateTime.now());
        category.setUpdateTime(LocalDateTime.now());
        category.setCreateUser(BaseContext.getCurrentId());
        category.setUpdateUser(BaseContext.getCurrentId());
        category.setStatus(StatusConstant.ENABLE);
        categoryMapper.add(category);
    }

    @Override
    public void update(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO,category);
        category.setUpdateTime(LocalDateTime.now());
        category.setUpdateUser(BaseContext.getCurrentId());
        categoryMapper.update(category);
    }

    @Override
    public void startOrStop(Integer status, Long id) {
        Category category = Category.builder().
                id(id).
                status(status).
                build();
        categoryMapper.update(category);
    }

    @Override
    public void delete(Long id) {
        //判断此分类是否关联了菜品
        int count = categoryMapper.countByCategoryId(id);
        if (count>0){
            throw new RuntimeException("当前分类下关联了菜品，不能删除");
        }
        categoryMapper.delete(id);
    }

    @Override
    public List<Category> list(Integer type) {
        return categoryMapper.list(type);
    }


}
